In chemistry, `pH = -log[H^+]`. Given that `C` is the original concentration of hydrogen ions in a liquid, and `P` is the original `pH` of the liquid, `P = -log(C)`. What is the effect on `pH` if the concentration of hydrogen ions is increased by a factor of `5`?
Box 1: Select the best answer
Box 2: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity